Upper end structure for fiber drums



Aug. 11, 1959 w. 1. GEIST 2,899,118

UPPER I END STRUCTURE FOR FIBER DRUMS Filed Jan. 19, 1956 2 Sheets-Sheet 1 INVENTOR W/Z'ZZiam J Heidi.

Aug. 11, 1959 GElsT 2,899,118

UPPER END STRUCTURE FOR FIBER DRUMS Filed Jan. 19, 1956 2 Sheets-Sheet 2 z 5 mlu w N.J m w 0 W m 5 m1 3 a? W 2 7.Q HWY h Z f 1M I W V/ MM United States Patent UPPER END STRUCTURE FOR FIBER DRUMS William J. Geist, Van Wert, Ohio, assignor to Continental Can Company, Inc., New York, N.Y., a corporation of New York Application January 19, 1956, Serial No. 560,136

Claims. (Cl. 229--5.7)

This invention relates to drums and the like constructed largely from fiber board. In such drums, it is customary to reinforce the chime portion of the drum side wall with metal to resist injury and provide an accurate seat for a sheet metal cover but the present day chime structure has nevertheless proven to be insufliciently strong to withstand the rough handling to which the drums are often subjected. The present invention aims to overcome this deficiency in a simple, inexpensive and practical manner.

In carrying out the above end, one object is to provide the fiber drum side wall with an integral chime portion which is unusually thick radially of the drum, and to provide a metal reinforcing band snugly surrounding the drum wall and having portions which coact with said thick chime portion in maintaining the shape of the latter.

Another object is to embody an upwardly open channel formation in the thickened chime structure, the shape of said channel formation being maintained by portions of the aforesaid metal reinforcing band, whereby an elastic gasket may be employed between the drum cover and the chime and may be compressed tightly into the upper part of said channel formation for tight sealing of the drum and for completely isolating the metal band from contact with packaged materials which may be of a corrosive nature.

A further object is to terminate the upper edge of the metal reinforcing band within the aforesaid channel formation, making it unnecessary to smoothly finish said edge or to crimp it into the fiber.

A still further object is to provide a novel metal cover for the drum, said cover having an arched bead for disposition over the aforesaid channel formation and adapted to receive the aforesaid gasket.

Another object is to provide a novel construction in which upper and lower flanges on a contractible locking band coact with the aforesaid arched bead and a portion of the metal reinforcing band, respectively, in securing the cover in place.

Yet another object is to provide a novel construction in which the locking band, a skirt on the cover, and the chime reinforcing portions of the aforesaid reinforcing band, provide an unusually great number of metal thicknesses which effectively protect the chime against injury.

A still further object is to associate a liner of polyethylene or other suitable material with the drum side wall and its reinforced chime structure. This liner as well as the aforesaid gasket are both employed when the drum is constructed for shipment of liquids or when the drum contents must be protected from'moisture, but for dry packs or for any materials which will not be harmed by moisture, the drum may be constructed without the liner, and the gasket may be omitted also if desired.

ice

With the above and other objects in view that will hereinafter appear, the nature of the invention will be more clearly understood by reference to the following detailed description, the appended claims and the several views illustrated in the accompanying drawings.

In the drawings:

Figure l of the accompanying drawings is an elevation of the upper portion of a sealed drum constructed in accordance with the invention.

Figure 2 is an enlarged radial section through the upper end of the drum wall and its reinforced chime structure.

Figure 3 is a view similar to Figure 2 but showing the cover initially placed on the drum in readiness for gasket compression and locking band application.

Figure 4 is a view similar to Figure 3 but showing the locking band applied, the cover depressed to final posi tion and the gasket compressed.

Figure 5 is a view similar to Figure 3 showing a construction in which the gasket and the liner are omitted.

Preferences have been illustrated in the drawings and will be rather specifically described but attention is in vited to the possibility of making variations within the scope of the invention.

A fiber board drum side wall 10 is shown, the upper end portion 11 of which is of reduced diameter, providing the wall with abreast portion 12. The upper end portion of the wall is turned outwardly and forms an upwardly presented transversely arched continuous bead 13, then extends downwardly and forms a continuous inner channel wall 14, is then turned outwardly and forms a continuous transversely concave channel bottom 15, and finally extends upwardly and provides a continuous outer channel wall 16. This outer wall 16 is in close relation with the inner Wall 14 and coacts with the latter and the bottom 15 in forming an upwardly open channel 17 which is extremely narrow and relatively deep. The upper edge.

18 of the outer wall 16 is transversely arched and coacts with the adjacent portion of the bead 13 in imparting an upward flare to the upper portion of the channel 17.

In Figures 2, 3 and 4, the drum side wall 10 includes a liner 19 impervious to moisture. This liner turns outwardly at 20 over the head 13, extends downwardly at 21 against the inner channel wall 14, turns outwardly at 22 upon'the channel bottom 15, and extends upwardly at 23 against the outer channel wall 16. This liner 19 is preferably formed from polyethylene.

A metal reinforcing band 24 tightly surrounds the breast portion 12 of the fiber wall 10 and the portions of this wall contiguous to said breast portion. This band 24 extends upwardly to the lower side of the bead 13 and is here downwardly folded substantially upon itself at 25, then extending downwardly and forming a second inner channel wall 26 contacting with the wall 14. The metal then turns outwardly and forms a second concave channel bottom 27 underlying the channel bottom 15, and then extends upwardly and provides a second outer channel wall 28 contacting with the wall 16. The metal then turns inwardly at 29 over the upper edge 18 of the wall 16 and finally extends downwardly at 30 and is snugly seated in the channel 17, the lower edge of the portion 30 being disposed in close proximity to the channel bottom. The above described formation of the metal reinforcing band 24 is the same whether the drum wall and its beaded end channeled upper portion be lined (Figures 2, 3 and 4) or unlined (Figure 5).

Patented Aug. 11,

k v g In either case, the specifically shaped upper portion of the Wall 10 and the similarly shaped upper portion of the reinforcing band 24'coact in forming'an'oii twardly thickened, effectively reinforced chime '31 which anrsadies" a annuity of "can centric thicknesses of metal and fiber and will well resist any normal impacts to which it may be subjected. Moreover, the chime 31 includes an upwardly flared continuous channel 32 providing a V-shaped seat into which a sealing gasket may be tightly seated, as described below.

A metal cover 33 is proyided, said cover having a peripheral skirt 34 joined by'a transversely arched. r einforcing bead 35 to the ma or erasner said This,

major portion includes an annular mmaerss at the ihnerextrerhity of the arched bead 35;and" concentric reinforcing corrugations 37 (Figure 3) surrounded" by said shoulder 36. The lower edge of the skirt 34 is hemmed at 38 for reinforcement and smooth finish.

The arched bead35 is of'such width as to extend over the upwardly open channel 32 of the chime 31 and the shoulder 36 is so positioned as to rest on the bead 13 when the cover 33 is in fully applied position (Figures 4 and 5.). i i

. Arr elastic gasket 39 is snugly receivable in the bead 3.5.when 'its use is required, said gasket being formed from rubber or neoprene, for example. This gasket 39 may be in the form of a conventional O-ring'and its diameter is such that it will project downwardly from the arched bead 35 (Figure 3) prior to complete cover application (Figure 4). Upon depression of the cover 3.3 to final position, the gasket 39 becomes tightly com p'ressed into the upwardly flared channel 32 and conforms in shape to the chime portions with which it contacts, thereby providing an extremely'tight seal.

A locking band 40 (Figures 1 and 4) is employed to secure the cver33'in place. This' band is 'shown of a type having a lever 41 for contacting it to operative position, a suitable latcli'42 and seal 42a being shown for said lever, in Figure 1. "The band 40 has an upper flange 43 to lie upon the cover bead 35, and a lower flange 44 to underlie"the metal channel bottom 27. When applying the cover 3'3,

ifrthe gasket 39 is employed, said cover is"sufficiently depressed by hand to allow initial engagement of the flanges '43 and 44 with the'bead 35 and channel bottom" 2'], respectively. Then, as the lever 41 is operated to" contract the band 40, the flanges 43 and 44 cam against the bead 35 and channel bottom 27, thus forcibly dcpressing the cover'tothe limit allowed 'by the 'cover shoulder 36 and firmly compressingthe gasket 39, as seen in Figure "4. The band40 then contacts "with the hem' 38, 'and'this' band and the cover skirt 34 then provide additional metal thicknesses which still further chime 31. "From the foregoing, it will be seen that a novel and practicable construction has been provided for attaining" the'desired ends. However, attention is again invited to the possibility of making variations within the scope 'of' the invention. "Iclaim:

1. A fiber drum side wall having its upper end portion turned outwardly to'form an upwardly'presented bead, then extended downwardly from said head to pro-' v'i'cle an inner channel wall, then turned outwardly from said inner channel wall to form a narrow channel bottom,"

and finally turned upwardly from said'channel bottom to form an outer channel wall; and a metal band snugly' surrounding the drum wall and extending upwardly be tween this wall and said inner channel wall, saidfband 'channel wall which contacts with the first mentioned outer channel wall, the metal being turned inwardly over the iippe r edge of said first mentioned outer channel wall and being finally extended downwardly against the inner side of said first mentioned outer channel wall, said final downwardly extended portion of the band metal being snugly seated between and in contact with the first mentioned channel walls.

2. A fiber drum side having its upper end portion turned outwardly to form an upwardly presented bead, then extended downwardly from said bead to provide an inner channel wall, then turned outwardly from said inner channel wall to form a narrow channel bottom, and. finally turned upwardly from said channel bottom to form an outer channel wallfand a metal band snugly surrounding the drum wall and extending upwardly be: tween this wall and said inner channel wall, said band being folded substantially upon itself under said bead and then extending downwardly to provide a second inner channel wall which contacts with the first men tioned inner channel wall, the metal being turned outwardly from said second inner channel wall to provide a second channel bottom which contacts with the first mentioned channel bottom, the metal being extended upwardly from said second channel bottom to provide a second outer. channel wall which contacts with the first mentioned outer channel wall, the metal being turned inwardly over the upper edge of said first mentioned outer channel wall and being finally extended downwardly against theinne r side of. said first mentioned outer channel wall, said bead and the metal extending over said 111 1 1 edge 'of the first mentioned outer channel wall being of transversely arched form, and said channel bottom'sf'being' of transversely concave form, the final downwardly. extended portion of the band metal being snugly sense between'and in contact with the first mentioned channel walls.

' '31A'fibrf'drum side wall having its upper end portion turned outwardly to forman'upwardly presented bead, tlitifextended downwardly from said head to provide an inner. channel wall, then turned outwardly from said inner channel wall to form a narrow channel bottom, andfinally tiirned upwardlyfrorn said channel bottom to form an dut'enfcha'nnelwall; and a metal band snugly surrounding thefdruni 'wall and'extending upwardly between this wall and s'aid'inner'channel wall, said band being folded s11 b staritially, upon itself under said bead and then extending. downwardly'toprovide' a second inner channel wall which; contacts with the first mentioned inner channel wall, the nie talgb'eing turnedj 'outwa'rdly from saidsecond inner channel wan tolp'r'ovide'a second channel bottom which contacts" with the" first"mentioned channel bottom, the metal being extended upwardly 'from said second channel bottcfn t6"prov idej a second outer channel wall which contacts with theffirst rnentioned outer channel wall, the

betweenfsaid first mentioned inner and outer channel:

w l; and infcontact withthe portions of the liner.which lie against these walls.

lk 'fibfer 'drnrnfsidewall having its upper end portion,

turned. outwardly: to. form an" upwardly presented I bead,

then cxtendedldownwardly fromsaid head to 7 provide an e l wall to forma narrow channel bottom, and finally mile}, sham-1 arpe a et l d. a l i va ns,

inner well, then .turnedoutwardly from said inner:

the drum wall and extending upwardly between this wall and said inner channel wall, said band being folded substantially upon itself under said bead and then extending downwardly to provide a second inner channel wall which contacts with the first mentioned inner channel wall, the metal being turned outwardly from said second inner channel wall to provide a second channel bottom which contacts with the first mentioned channel bottom, the metal being extended upwardly from said second channel bottom to provide a second outer channel wall which contacts with the first mentioned outer channel wall, the metal being turned inwardly over the upper edge of said first mentioned outer channel wall and being finally extended downwardly against the inner side of said first mentioned outer channel wall to form with the upwardly presented bead an upwardly opening metal reinforced V- shaped seat for engagement by a sealing gasket, and there also being included a cover having a transversely arched peripheral head to overlie the band metal which extends over the upper edge of the first mentioned outer channel wall, said arched cover bead being of a width to also extend over a portion of the first mentioned bead, a resilient gasket seated in said transversely arched cover bead and normally projecting downwardly therefrom in position for engaging in said V-shaped seat, and a contractible locking band having an upper inwardly projecting flange to lie upon said transversely arched cover bead, said locking band also having a lower inwardly projecting flange to underlie and contact with said second channel bottom, the spacing of said flanges being such as to cause compression and tight seating of said gasket in said V-shaped seat and over the band metal turned inwardly over said first mentioned outer channel wall when said locking band is applied.

5. A fiber drum side wall having its upper end portion turned outwardly to form an upwardly presented bead, then extended downwardly from said head to provide an inner channel wall, then turned outwardly from said inner channel wall to form a narrow channel bottom, and finally turned upwardly from said channel bottom to form an outer channel wall; and a metal band surrounding the drum wall and extending upwardly between this wall and said inner channel wall, said band being folded substantially upon itself under said head and then extending downwardly to provide a second inner channel wall which contacts with the first mentioned inner channel wall, the metal being turned outwardly from said second inner channel wall to provide a second channel bottom which contacts with the first mentioned channel bottom, the metal being extended upwardly from said second channel bottom to provide a second outer channel wall which contacts with the first mentioned outer channel wall, the metal being turned inwardly over the upper edge of said first mentioned outer channel wall and being finally extended downwardly against the inner side of said first mentioned outer channel wall to form with the upwardly presented bead an upwardly opening metal reinforced V- shaped seat for engagement by a sealing gasket, said bead and the band metal extending over the upper edge of the first mentioned outer channel wall being of transversely arched form, and there also being included a cover having a transversely arched peripheral bead to extend over said arched portion of the band metal and over a portion of the first mentioned arched bead and said V-shaped seat disposed between them, a resilient gasket seated in said transversely arched cover bead and normally projecting downwardly therefrom in position for engaging in said V- shaped seat, and a contractible locking band having an upper inwardly projecting flange to lie upon said transversely arched cover head, said locking band also having a lower inwardly projecting flange to underlie and contact said second channel bottom, the spacing of said flanges being such as to cause compression and tight sealing of said gasket in said V-shaped seat and over portions of said arched portion of the band metal and said first mentioned arched bead when said locking band is applied.

6. A fiber drum side wall having its upper end portion turned outwardly to form an upwardly presented head, then extended downwardly from said bead to provide an inner channel wall, then turned outwardly from said inner channel wall to form a narrow channel bottom, and finally turned upwardly from said channel bottom to form an outer channel wall; and a metal band snugly surrounding the drum wall and extending upwardly between this wall and said inner channel wall, said band being folded substantially upon itself under said head and then extending downwardly to provide a second inner channel wall which contacts with the first mentioned inner channel wall, the metal being turned outwardly from said second inner channel wall to provide a second channel bottom which contacts with the first mentioned channel bottom, the metal being extended upwardly from said second channel bottom to provide a second outer channel wall which contacts with the first mentioned outer channel wall, the metal being turned inwardly over the upper edge of said first mentioned outer channel wall and being finally extended downwardly against the inner side of said first mentioned outer channel wall to form with the upwardly presented bead an upwardly opening metal reinforced V- shaped seat for engagement by a sealing gasket, and there also being included a cover having a depending skirt and a transversely arched bead joining said skirt to the major portion of the cover, said arched bead being adapted to overlie the band metal which extends over the upper edge of the first mentioned outer channel wall, said arched cover bead being of a width to also extend over a portion of the first mentioned bead and said V-shaped seat disposed between them, a resilient gasket seated in said transversely arched cover bead and normally projecting downwardly therefrom in position for engaging in said V- shaped seat, and a contractible locking band having an upper inwardly projecting flange to lie upon said transversely arched cover head, said locking band also having a lower inwardly projecting flange to underlie and contact with said second channel bottom, the spacing of said flanges being such as to cause compression and tight seating of said gasket in said V-shaped seat and over portions of said arched portion of the band metal and said first mentioned arched head when said locking band is applied, said cover having a portion to seat on said first mentioned bead when said locking band is fully applied.

7. A fiber drum side wall having its upper end portion turned outwardly to form an upwardly presented head, then extended downwardly from said head to provide an inner channel wall, then turned outwardly from said inner channel wall to form a narrow channel bottom, and finally turned upwardly from said channel bottom to form an outer channel wall; and a metal band snugly surrounding the drum wall and extending upwardly between this wall and said inner channel wall, said band being folded sub stantially upon itself under said bead and then extending downwardly to provide a second inner channel wall which contacts with the first mentioned inner channel wall, the metal being turned outwardly from said second inner channel wall to provide a second channel bottom which contacts with the first mentioned channel bottom, the metal being extended upwardly from said second channel bottom to provide a second outer channel wall which contacts with the first mentioned outer channel wall, the metal being turned inwardly over the upper edge of said first mentioned outer channel wall and being finally extended downwardly against the inner side of said first mentioned outer channel wall to form with the upwardly presented bead an upwardly opening metal reinforced V- shaped seat for engagement by a sealing gasket.

8. A fiber drum structure as set forth in claim 7, including a cover having a peripheral skirt surrounding said second outer channel wall, said cover having a transversely arched bead joining said skirt to the major portion of the cover, the portion of the latter adjacent said archedbead being disposed on the first mentioned bead, and acontractible locking band having an upper flange resting on said arched bead, said locking band also having a lower flange underlying and contacting with said second channel bottom.

9. A fiber drum structure as set forth in claim 7, wherein said bead and the metal extending over said upper edge of the first mentioned outer channel Wall being of transversely arched form, and said channel bottoms being of transversely coneave form.

1 O. A fiber drum structure as set forth in claim 7,

wherein said drum side wall includes a liner, the upper end portion ofsaid liner being turned outwardly over said References Cited in the file of'this'patent UNITED STATES. PATENTS E- -.----v-- s- 10, Schneider June 13, 1950: Reid et al. Dec, 1,1953

Russell et a1. f May 31, 1955 

